Fix column width on switching to vertical layout
Fix column width on switching to vertical layout

Main fix to issue #1016
Also improved some comments

ViennaRSS/vienna-rss,barijaona/vienna-rss,ViennaRSS/vienna-rss,barijaona/vienna-rss,lapcat/vienna-rss,ViennaRSS/vienna-rss,barijaona/vienna-rss,barijaona/vienna-rss,lapcat/vienna-rss,josh64x2/vienna-rss,Eitot/vienna-rss,Eitot/vienna-rss,josh64x2/vienna-rss,Eitot/vienna-rss,lapcat/vienna-rss,lapcat/vienna-rss,josh64x2/vienna-rss,josh64x2/vienna-rss,Eitot/vienna-rss,josh64x2/vienna-rss,ViennaRSS/vienna-rss,ViennaRSS/vienna-rss,barijaona/vienna-rss